然后引入色彩相似性约束将灰度空间的匹配和彩色空间的匹配有机的结合起来，大大提高了匹配的精度。
Then, by adding constraint of color similarity, the grey space matching was combined with color space matching suitably and the improved SSD method could use the color information reasonably.
该算法利用线性同余模型产生伪随机序列以对图像进行空间置乱，采用异或操作实现图像的灰度变换。
It achieves space chaos of an image with a pseudo-random sequence generated by linear congruential method, and achieves gray chaos by XOR operation.
一个颜色对象。颜色信息表现为它在设备中的灰度颜色空间信息。
The color object. The color information represented by this object is in the device gray colorspace.
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